Question

Glycinato ligand is

• A.
• B. having two donor sites $N$ and $O^{-}$
• C. a bidentate ligand
• D. All of the above.

Answer 1

The correct option is D All of the above.

The structure of the glycinato ligand is considered as the ligand form of glycinate. The structure of glycinate is formed with a central carbon associated with amino $-N{H}_2$ group and there is $(-CO{O}^{-})$ as the other association of the central carbon. The two other bonds are associated with hydrogen residues. Therefore, the given structure of glycinato as given in the option is true.
The ligand is bidentate as there are two sites from which the electron pairs can be shared with the metal ions for the association. The oxygen residue in the $(-CO{O}^{-})$ and the nitrogen residue in $-N{H}_2$ group are the two residues with the free lone pair of electrons which makes the ligand bidentate. The bidentate character means that there are two regions which act as the donor site for the donation of electrons.